heck you can probably get one from MF new and just as cheep if you just need a guest guitar. Congrats on your 12, I just got my NGD last month and love it! Tuning down a half step is less "tinny" sounding on the high strings and less stress on the neck and bridge. I have found that you need standard tuning for most of Gordon Lightfoot's stuff and a good capo. Im using a standard capo,, but want one for a 12 It will mute the strings better.
Enjoy your 12!